Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 109995
Title Esterification of 4-methyloctanoic acid with polyethylene glycol at different aw
Author(s) Heinsman, N.W.J.T.; Teixeira, A.; Weide, P.L.J. van der; Franssen, M.C.R.; Padt, A. van der; Groot, A. de; Riet, K. van 't
Source Biocatalysis and Biotransformation 19 (2001). - ISSN 1024-2422 - p. 181 - 189.
DOI https://doi.org/10.3109/10242420109105263
Department(s) Organic Chemistry
Sub-department of Food and Bioprocess Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2001
Abstract Novozym 435? (immobilized Candida antarctica lipase B) was used to esterify 4-methyloctanoic acid with polyethylene glycols (PEGs) of different molecular weights (PEG-600, PEG-3000 and PEG-20000) at different water activities. A system composed of 4-methyloctanoic acid and PEG-600 was monophasic, except at a high water activity. Even at a water activity of 0.8, PEG was still converted to its mono- or diester, which proves the unique character of PEG. The PEG-esters accumulated in the apolar phase.
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